# Copyright 2016 The Closure Rules Authors. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

def deb_extract(name, src, outs, **kwargs):
    """Extracts data files from Debian archive."""
    native.genrule(
        name = name,
        srcs = [src],
        outs = outs.values(),
        cmd = "\n".join([
            "set -e",
            "DIR=$$(pwd)",
            "IN=$$DIR/$<",
            "TMP=$$(mktemp -d $${TMPDIR:-/tmp}/genrule.XXXXXXXXXX)",
            "cd $$TMP",
            "ar x $$IN data.tar.xz",
            "tar -xJf data.tar.xz",
            "cd $$DIR",
        ] + ["mv $$TMP/%s $(location %s)" % (k, v) for k, v in outs.items()] + [
            "rm -rf $$TMP",
        ]),
        **kwargs
    )
